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arXiv · hep-ph/9904226

Excited scalar mesons in a chiral quark model

M. K. Volkov·V. L. Yudichev
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Abstract

First radial excitations of the isoscalar and isovector scalar mesons f_0(400-1200), f_0(980) and a_0(980) are investigated in the framework of a nonlocal version of a chiral quark model of the Nambu--Jona-Lasinio type. It is shown that f_0(1370), f_J(1710) and a_0(1450) are the first radially excited states of f_0(400-1200), f_0(980) and a_0(980) which are ground states of the scalar meson nonet. The mesons' masses and strong decay widths are calculated. The scalar resonance f_0(1500) is supposed to be a glueball. The status of K_0^*(1430) is discussed.

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M. K. Volkov, V. L. Yudichev. 1999-04-07. Excited scalar mesons in a chiral quark model. https://doi.org/10.1142/s0217751x99002165

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